JPS63192700U - - Google Patents
Info
- Publication number
- JPS63192700U JPS63192700U JP8479587U JP8479587U JPS63192700U JP S63192700 U JPS63192700 U JP S63192700U JP 8479587 U JP8479587 U JP 8479587U JP 8479587 U JP8479587 U JP 8479587U JP S63192700 U JPS63192700 U JP S63192700U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- light
- switching device
- source switching
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims 2
- 238000005286 illumination Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Microscoopes, Condenser (AREA)
Description
第１図はこの考案の光源切換え装置の一実施例
を示す平面図、第２図は一部欠截正面図、第３図
は電気的構成を示すブロツク図、第４図は光量低
下を示すグラフ図。
１……光源、２……予備の光源、３……光源切
換え手段、５……光量検出手段としての光電変換
器、６……光量低下検出手段。
Fig. 1 is a plan view showing an embodiment of the light source switching device of this invention, Fig. 2 is a partially cutaway front view, Fig. 3 is a block diagram showing the electrical configuration, and Fig. 4 shows a decrease in light intensity. Graph diagram. 1... Light source, 2... Spare light source, 3... Light source switching means, 5... Photoelectric converter as light amount detection means, 6... Light amount reduction detection means.
Claims (1)
めに選択的に点灯させるとともに、点灯された光
源の状態を検出して自動的に他の光源に切換えを
光源切換え装置において、点灯された光源の光量
を検出する光量検出手段と、光量検出手段からの
信号に基づいて光源の光量が所定の閾値以下に低
下したことを検出する光量低下検出手段と、光量
低下検出手段からの信号に基づいて、各光源を移
動させて上記点灯された光源を他の光源に切換え
る光源切換え手段とを具備することを特徴とする
光源切換え装置。 ２ 閾値が、光源として必要な光量の下限値に設
定されている上記実用新案登録請求の範囲第１項
記載の光源切換え装置。 ３ 光量低下検出手段が、上記閾値よりもやや高
いレベルまで光量が低下したことをも検出し、こ
の検出信号に基づいて、光源切換え手段が切換え
用の新たな光源を予備的に点灯させる上記実用新
案登録請求の範囲第２項記載の光源切換え装置。 ４ 光源切換え手段が、複数の光源を取付けた回
転ベースを、コイルばねによる付勢力にて回転さ
せるものである上記実用新案登録請求の範囲第１
項記載の光源切換え装置。[Claims for Utility Model Registration] 1. To selectively turn on multiple light sources disposed in the light projector for illumination, and to detect the state of the turned on light source and automatically switch to other light sources. In the light source switching device, the light source switching device includes: a light amount detection means for detecting the light amount of the turned-on light source; and a light amount reduction detection means for detecting that the light amount of the light source has decreased to a predetermined threshold value or less based on a signal from the light amount detection means. 1. A light source switching device comprising: a light source switching device that moves each light source to switch the lit light source to another light source based on a signal from the light amount reduction detection device. 2. The light source switching device according to claim 1, wherein the threshold value is set to the lower limit of the amount of light necessary for the light source. 3. The above-mentioned practical application in which the light amount reduction detection means also detects that the light amount has decreased to a level slightly higher than the threshold value, and based on this detection signal, the light source switching means preliminarily turns on a new light source for switching. A light source switching device according to claim 2 of the patent registration claim. 4. Claim 1 of the above utility model registration in which the light source switching means rotates a rotating base to which a plurality of light sources are attached by the urging force of a coil spring.
The light source switching device described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8479587U JPS63192700U (en) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8479587U JPS63192700U (en) | 1987-05-29 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63192700U true JPS63192700U (en) | 1988-12-12 |
Family
ID=30939617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8479587U Pending JPS63192700U (en) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63192700U (en) |
-
1987
- 1987-05-29 JP JP8479587U patent/JPS63192700U/ja active Pending
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